我可以在角度材质中使用md-select来运行函数吗？

Question

我遇到了一个奇怪的错误,但也许我正在使用md-select错误.我正在尝试转到新页面或根据ng-selected选项退出.不幸的是,我收到此错误:

Error: Failed to execute 'removeChild' on 'Node': The node to be removed is not a child of this node.

HTML:

<md-select placeholder="DISRUPTIVE" ng-model="activePage" ng-change="changeSelected()">
   <md-option value="settings">Settings</md-option>
   <md-option value="logout">Sign Out</md-option>
 </md-select>

控制器:

$scope.changeSelected = function(){
      switch ($scope.activePage) {
      case "settings":
        $location.path( '/account');
        break;
      case "logout":
        $scope.logout();
        break;
    }

    };

导航到所选页面或注销后,我收到错误.md-select可以不用这种方式吗？

编辑:这与离开页面而不让md-select完成有关.如果我添加$ timeout,它会起作用.这不是理想的,但至少我可以继续前进:

$scope.changeSelected = function(){
      $timeout(function() {
        switch ($scope.activePage) {
        case "settings":
          $location.path( '/account');
          break;
        case "logout":
          Auth.logout();
          break;
      }
    }, 1000);

Answer 1

要收听选择的更改,您只需添加ng-change指令.检查这个简单的例子

<div ng-app="selectDemoBasic" ng-controller="AppCtrl" layout="column" layout-align="center center" style="min-height: 300px;">
  <md-select placeholder="Pick" ng-model="someVal" ng-change="selectChanged()">
    <md-option value="1">One</md-option>
    <md-option value="2">Two</md-option>
  </md-select>
</div>

js部分

angular.module('selectDemoBasic', ['ngMaterial']).controller('AppCtrl', function($scope) {
  $scope.selectChanged = function(){
    alert("value changed-->"+$scope.someVal);
    if ($scope.someVal==1){
      $scope.otherFunction();
    }
  };

  $scope.otherFunction = function(){
    alert("in the other function");
  };
});

http://codepen.io/Eylen/pen/dobbqg/